Checking and replacing the air flow sensor ZMZ 405

Mass air flow sensor - thermopneumatic type IVKSH 407282000, installed in the intake system after the air filter

Since the hydraulic tensioners keep the chains constantly taut, regardless of chain stretch or shoe wear, there is no need to adjust the chain tension during operation

Relieve fuel pressure in the fuel system

Turn off the ignition and remove the "negative" terminal of the battery

You will need: a hex wrench “6”, heads “12”, “13”, “14”, a small chisel, a hammer

The electronic unit, processing the data received from the sensors of the system, controls the operation of two ignition coils, applying low voltage pulses to them

With a certain skill and care, many malfunctions of the engine and its systems can be quite accurately determined by the color of the smoke coming out of the exhaust pipe